html,body{
    width: 100%;
    height: 100%;
}

body{
    background: url('../image/login_background.jpg') fixed;
    background-size: cover;
}

.is-center{
    display: flex;
    justify-content: center;
    align-items: center;
}


.logo {
    background-color: rgba(255, 255, 255, 0.75);
    border-radius: 50px;
}

